Abstract: The possibility to determine with high precision the position of a wireless interactive communication device within pre-defined boundaries opens new range of services, which are location based. According to the invention, it is proposed a wireless interactive communication device comprising a microprocessor accessing a memory, this communication device comprising a communication channel to receive and store in the memory a database containing the spatial model of the venue where the device is used, this device furthermore comprising a facility to determine its position by listening to synchronized fixed beacons, allowing the communication device to retrieve from the spatial model the area of the venue where it is located, subsequently allowing the communication device to adapt its functionality and or wireless communication behavior to the area where it is located, allowing the reduction of the interactive communication device power consumption and/or the optimization of the wireless communication bandwidth.

Abstract: In a preferred embodiment, the present invention provides a method and devices serving hundreds or thousands of delegates of conferences and other live events (such as management meetings or training seminars) with up-to date information related to the event and the delegates. Additionally, the present invention can link such information with information about the proximity of delegates using the system. It can also transmit messages from delegate to delegate or from a central server to delegates or groups of delegates.